Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil

Detalhes bibliográficos
Autor(a) principal: Loure?co, da Luzia Silva
Data de Publicação: 2012
Outros Autores: Fernandes, Izaias Médice, Suárez, Yzel Rondón
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional do INPA
Texto Completo: https://repositorio.inpa.gov.br/handle/1/15281
Resumo: The present study has assessed spatial and temporal variations in the length structure of Hemigrammus marginatus Ellis, 1911 and estimated growth parameters for the species. Sampling was carried out in five streams in the Vitoria and Piravevě sub-basins of the Ivinhema River from January to December 2002. A total of 933 specimens of H. marginatus were caught (97 in the Vitoria sub-basin and 836 in the Piravevě sub-basin). Mean length of the individuals caught in the Piravevě sub-basin was shorter (21.58 mm, SD = 4.67) than that of individuals caught in the Vitoria sub-basin (29.24 mm, SD = 4.42). Analysis of condition factor calculated from the weight/length relationship revealed that the values were constant both spatially (between sub-basins) and temporally (throughout the year). In the Piravevě sub-basin, the theoretical maximal length estimated for this species was 37.26 mm, with natural mortality rate of 1.22 year1, growth rate (k) of 0.66 year1, and growth performance index (9) of 3.80 and 4.25 years of longevity. The input of new individuals in the population occurs twice per year, with greater recruitment at the peak of the rainy season (May) and the peak of the dry season (August). © 2012 Sociedade Brasileira de Zoología. All rights reserved.
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spelling Loure?co, da Luzia SilvaFernandes, Izaias MédiceSuárez, Yzel Rondón2020-05-07T14:22:48Z2020-05-07T14:22:48Z2012https://repositorio.inpa.gov.br/handle/1/1528110.1590/S1984-46702012000400003The present study has assessed spatial and temporal variations in the length structure of Hemigrammus marginatus Ellis, 1911 and estimated growth parameters for the species. Sampling was carried out in five streams in the Vitoria and Piravevě sub-basins of the Ivinhema River from January to December 2002. A total of 933 specimens of H. marginatus were caught (97 in the Vitoria sub-basin and 836 in the Piravevě sub-basin). Mean length of the individuals caught in the Piravevě sub-basin was shorter (21.58 mm, SD = 4.67) than that of individuals caught in the Vitoria sub-basin (29.24 mm, SD = 4.42). Analysis of condition factor calculated from the weight/length relationship revealed that the values were constant both spatially (between sub-basins) and temporally (throughout the year). In the Piravevě sub-basin, the theoretical maximal length estimated for this species was 37.26 mm, with natural mortality rate of 1.22 year1, growth rate (k) of 0.66 year1, and growth performance index (9) of 3.80 and 4.25 years of longevity. The input of new individuals in the population occurs twice per year, with greater recruitment at the peak of the rainy season (May) and the peak of the dry season (August). © 2012 Sociedade Brasileira de Zoología. All rights reserved.Volume 29, Número 4, Pags. 300-307Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessCharacidaeCharaciformesHemigrammus MarginatusSpatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleZoologiaengreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf699624https://repositorio.inpa.gov.br/bitstream/1/15281/1/artigo-inpa.pdf61d454126abbc60de58ae2ef6a99c461MD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/15281/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/152812020-07-14 11:03:42.983oai:repositorio:1/15281Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-14T15:03:42Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false
dc.title.en.fl_str_mv Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
title Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
spellingShingle Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
Loure?co, da Luzia Silva
Characidae
Characiformes
Hemigrammus Marginatus
title_short Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
title_full Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
title_fullStr Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
title_full_unstemmed Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
title_sort Spatial and temporal variation in population structure of Hemigrammus marginatus (Characiformes: Characidae) in streams of the Ivinhema River Basin, Brazil
author Loure?co, da Luzia Silva
author_facet Loure?co, da Luzia Silva
Fernandes, Izaias Médice
Suárez, Yzel Rondón
author_role author
author2 Fernandes, Izaias Médice
Suárez, Yzel Rondón
author2_role author
author
dc.contributor.author.fl_str_mv Loure?co, da Luzia Silva
Fernandes, Izaias Médice
Suárez, Yzel Rondón
dc.subject.eng.fl_str_mv Characidae
Characiformes
Hemigrammus Marginatus
topic Characidae
Characiformes
Hemigrammus Marginatus
description The present study has assessed spatial and temporal variations in the length structure of Hemigrammus marginatus Ellis, 1911 and estimated growth parameters for the species. Sampling was carried out in five streams in the Vitoria and Piravevě sub-basins of the Ivinhema River from January to December 2002. A total of 933 specimens of H. marginatus were caught (97 in the Vitoria sub-basin and 836 in the Piravevě sub-basin). Mean length of the individuals caught in the Piravevě sub-basin was shorter (21.58 mm, SD = 4.67) than that of individuals caught in the Vitoria sub-basin (29.24 mm, SD = 4.42). Analysis of condition factor calculated from the weight/length relationship revealed that the values were constant both spatially (between sub-basins) and temporally (throughout the year). In the Piravevě sub-basin, the theoretical maximal length estimated for this species was 37.26 mm, with natural mortality rate of 1.22 year1, growth rate (k) of 0.66 year1, and growth performance index (9) of 3.80 and 4.25 years of longevity. The input of new individuals in the population occurs twice per year, with greater recruitment at the peak of the rainy season (May) and the peak of the dry season (August). © 2012 Sociedade Brasileira de Zoología. All rights reserved.
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2020-05-07T14:22:48Z
dc.date.available.fl_str_mv 2020-05-07T14:22:48Z
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dc.identifier.uri.fl_str_mv https://repositorio.inpa.gov.br/handle/1/15281
dc.identifier.doi.none.fl_str_mv 10.1590/S1984-46702012000400003
url https://repositorio.inpa.gov.br/handle/1/15281
identifier_str_mv 10.1590/S1984-46702012000400003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Volume 29, Número 4, Pags. 300-307
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Zoologia
publisher.none.fl_str_mv Zoologia
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